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M20 C51100 Bronze vs. M20 C62400 Bronze

Both M20 C51100 bronze and M20 C62400 bronze are copper alloys. Both are furnished in the M20 (as hot rolled) condition. They have 86% of their average alloy composition in common.

For each property being compared, the top bar is M20 C51100 bronze and the bottom bar is M20 C62400 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 50
14
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 42
42
Shear Strength, MPa 250
430
Tensile Strength: Ultimate (UTS), MPa 350
710
Tensile Strength: Yield (Proof), MPa 110
270

Thermal Properties

Latent Heat of Fusion, J/g 200
230
Maximum Temperature: Mechanical, °C 190
220
Melting Completion (Liquidus), °C 1060
1040
Melting Onset (Solidus), °C 970
1030
Specific Heat Capacity, J/kg-K 380
440
Thermal Conductivity, W/m-K 84
59
Thermal Expansion, µm/m-K 18
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
12
Electrical Conductivity: Equal Weight (Specific), % IACS 20
13

Otherwise Unclassified Properties

Base Metal Price, % relative 32
27
Density, g/cm3 8.9
8.2
Embodied Carbon, kg CO2/kg material 3.0
3.2
Embodied Energy, MJ/kg 48
53
Embodied Water, L/kg 340
400

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
77
Resilience: Unit (Modulus of Resilience), kJ/m3 58
320
Stiffness to Weight: Axial, points 7.1
7.6
Stiffness to Weight: Bending, points 18
20
Strength to Weight: Axial, points 11
24
Strength to Weight: Bending, points 12
21
Thermal Diffusivity, mm2/s 25
16
Thermal Shock Resistance, points 12
25

Alloy Composition

Aluminum (Al), % 0
10 to 11.5
Copper (Cu), % 93.8 to 96.5
82.8 to 88
Iron (Fe), % 0 to 0.1
2.0 to 4.5
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0
0 to 0.3
Phosphorus (P), % 0.030 to 0.35
0
Silicon (Si), % 0
0 to 0.25
Tin (Sn), % 3.5 to 4.9
0 to 0.2
Zinc (Zn), % 0 to 0.3
0
Residuals, % 0
0 to 0.5